Question detail
What is the ionic equation for the reaction of bromide ions with silver nitrate?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Group 7(17), the halogens
Question
- A. Ag^+ + Br^- → AgBr
- B. Ag^+ + Cl^- → AgCl
- C. Ag^+ + I^- → AgI
- D. Ag^+ + F^- → AgF
Answer
Ag^+ + Br^- → AgBr
Explanation
The ionic equation shows the formation of silver bromide (AgBr) when silver ions react with bromide ions, illustrating the displacement reaction.
Common mistake
Common Mistake in Halide Ion Tests
Students often confuse the test for halide ions with the test for other ions, leading to incorrect observations and conclusions.
To correctly test for halide ions, use silver nitrate solution. The reaction is: AgNO3 + NaCl → AgCl (precipitate) + NaNO3. When silver nitrate is added to a solution containing halide ions, a white precipitate of silver chloride forms if chloride ions are present. Ensure to follow this procedure to avoid confusion.
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